Sound quality parameters of an axial fan

2005 ◽  
Vol 118 (3) ◽  
pp. 1867-1867
Author(s):  
Mark A. Trautman ◽  
Willem M. Beltman
Keyword(s):  
Sound Quality ◽  
Quality Parameters ◽  
Axial Fan

ENGINE SOUND COMFORTABILITY: RELEVANT SOUND QUALITY PARAMETERS AND CLASSIFICATION

2005 ◽  
Vol 38 (1) ◽  
pp. 61-66 ◽  
Author(s):  
T. Coen ◽  
N. Jans ◽  
P. Van de Ponseele ◽  
I. Goethals ◽  
J. De Baerdemaeker ◽  
...  
Keyword(s):  
Sound Quality ◽  
Quality Parameters

scholarly journals Sound Quality for Micro Axial Fan with Blade Run-Out(Machine Elements and Manufacturing)

2009 ◽  
Vol 75 (752) ◽  
pp. 1194-1200
Author(s):  
Kensaku YANAGIMOTO ◽  
Seiji WATANABE ◽  
Masayuki TAKAHASHI ◽  
Shuichi SAKAMOTO
Keyword(s):  
Sound Quality ◽  
Axial Fan ◽  
Machine Elements

Identification of Sound Quality Parameters With Respect to Subjective Feel of HVAC Noise of Diesel SUV’s

2012 ◽  
Author(s):  
Murali Bodla ◽  
Riyazuddin Mohammed ◽  
Rajesh Bhangale ◽  
Khumbhar Mansinh
Keyword(s):  
Power Plants ◽  
Sound Quality ◽  
Quality Parameters ◽  
Climatic Conditions ◽  
Operating Conditions ◽  
Subjective Rating ◽  
Sound Sources ◽  
Cabin Noise ◽  
Noise Function ◽  
Noise Measurements

Recent trends in developing quieter diesel power plants in automobiles leading to unmasking the secondary sound sources. One of the major secondary sound sources of in-cabin noise is HVAC system. HVAC noise is one such sound likely to be present as long as the automobile is in use. In extreme climatic conditions, like in India, HVAC is majorly operated at higher speeds and adding to that SUV volume requires more air circulation which generates lot of flow induced noise. Under these conditions, the contribution of HVAC noise is more significant for passengers and many a times it influences subjective cognition that causes the driver’s emotional response to be unpleasant, it is more important to identify the most significant sound quality parameters that contribute to the perception of HVAC noise. Measurements were done on five different diesel SUVs with different HVAC operating conditions each having variable fan speeds with engine on and off respectively. Using the semantic differential technique subjective rating of the measured signals has been done. The psycho acoustic parameters calculated objectively for the measured interior sounds later those were compared with subjective rating by using HVAC noise function (HNF) to obtain the suitable parameters to represent HVAC noise.

Comparison of Interior Jet Aircraft Noise using Sound Quality Parameters

2008 ◽  
Author(s):  
Samir N.Y. Gerges ◽  
Raquel F. Bitencourt ◽  
Camila Sato ◽  
Pascal Dietrich ◽  
J.L. Bento Coelho ◽  
...  
Keyword(s):  
Sound Quality ◽  
Quality Parameters ◽  
Aircraft Noise

Sound quality control of axial fan noise by using microperforated panel housing with a hollow tube

2017 ◽  
Vol 141 (5) ◽  
pp. 3553-3554
Author(s):  
Yatsze Choy ◽  
Yan Kei Chiang ◽  
Qiang Xi
Keyword(s):  
Quality Control ◽  
Sound Quality ◽  
Axial Fan ◽  
Fan Noise

A new sound quality metric for the design of engine exhaust mufflers

2017 ◽  
Vol 232 (2) ◽  
pp. 254-263
Author(s):  
Kuppam Pruthvi Kumar Reddy ◽  
Shahab Fatima ◽  
Amiya R Mohanty
Keyword(s):  
Sound Quality ◽  
Quality Parameters ◽  
Engine Exhaust ◽  
Postgraduate Students ◽  
Critical Dimensions ◽  
Quality Metric ◽  
Radiated Noise ◽  
Loudness Level ◽  
Institute Of Technology

In this paper, a study is made to determine the critical dimensions in the design of a family of reactive mufflers which significantly affect the sound quality of the tailpipe radiated noise. The sound quality parameters of the tailpipe noise such as the loudness level, the roughness and the tonality are measured, and a new sound quality metric is developed which can be used as an index to predict the performance of a muffler. The new sound quality metric was based on the evaluations of the synthesized tailpipe noise by a jury consisting of a few undergraduate and postgraduate students at the Indian Institute of Technology Kharagpur. Using the new sound quality metric, the parameters with the most influence on the design of the muffler can be determined. It was found that the length and the open area ratio of a concentric-tube resonator muffler have the highest impact on the tailpipe noise sound quality.

scholarly journals Sound Quality for Micro Axial Fan with Blade Run-Out

2012 ◽  
Vol 7 (1) ◽  
pp. 1-11
Author(s):  
Kensaku YANAGIMOTO ◽  
Seiji WATANABE ◽  
Masayuki TAKAHASHI ◽  
Shuichi SAKAMOTO
Keyword(s):  
Sound Quality ◽  
Axial Fan
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